# US 9,433,323 B2 · Cutting implement for food processor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,433,323 B2 - Document ID: US9433323B2 - Status: Granted - Kind: B2 - Application number: 14/185,197 - Filed: 2014-02-20 - Published: 2014-08-21 - Granted: 2016-09-06 - Earliest claimed: 2013-02-20 - Applicants: CAB Plastics Ltd. - Inventors: Yongsen Li - Web page: https://patentgrep.com/patent/US9433323B2 ## CPC - A47J 43/0722: {Mixing, whipping or cutting tools} - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES ## Abstract In a cutting implement for a food processor, a blade axle is rotatable on a rotation axis thereof in a direction of rotation of the blade axle. At least one blade assembly is mounted on the blade axle. The at least one blade assembly has at least one single-piece arcuate blade having an upper blade section coupled to the blade axle, a lower blade section separate from the upper blade section and coupled to the blade axle, and a middle blade section extending arcuately between and interconnecting the upper and lower blade sections. The single-piece arcuate blade has a leading edge in the direction of rotation of the blade axle, with the leading edge at least in part being configured to define a cutting edge of the single-piece arcuate blade. ## Claims ### Claim 1 A cutting implement for a food processor, the cutting implement comprising a blade axle rotatable on a rotation axis thereof in a direction of rotation of the blade axle, and at least one blade assembly mounted on the blade axle, the at least one blade assembly comprising at least one single-piece arcuate blade having an upper blade section coupled to the blade axle, a lower blade section separate from the upper blade section and coupled to the blade axle, and a middle blade section extending arcuately between and interconnecting the upper and lower blade sections, the single-piece arcuate blade having a leading edge in the direction of rotation of the blade axle, said leading edge at least in part being configured to define a cutting edge of the single-piece arcuate blade. ### Claim 2 (depends on 1) The cutting implement set forth in claim 1 wherein the at least one single-piece arcuate blade transitions from the upper blade section to the middle blade section in one of a reverse direction and a forward direction relative to the direction of rotation of the blade axle. ### Claim 3 (depends on 2) The cutting implement set forth in claim 2 wherein the at least one single-piece arcuate blade transitions from the middle blade section to the lower blade section in a direction opposite the direction of transition of the upper blade section to the middle blade section. ### Claim 4 (depends on 1) The cutting implement set forth in claim 1 wherein the at least one single-piece arcuate blade transitions from the middle blade section to the lower blade section in one of a reverse direction and a forward direction relative to the direction of rotation of the blade axle. ### Claim 5 (depends on 1) The cutting implement set forth in claim 1 wherein the cutting edge extends along at least part of the upper blade section, along the entire middle blade section and along at least part of the lower blade section of the single-piece arcuate blade. ### Claim 6 (depends on 1) The cutting implement set forth in claim 1 wherein the at least one blade assembly further comprises a hub mounted on the blade axle for rotation therewith, an upper support ring disposed on the blade axle above the hub and a lower support ring disposed on the blade axle below the hub, the blade assembly having a pair of single-piece arcuate blades in a stacked arrangement to define an upper arcuate blade and a lower arcuate blade, each arcuate blade further comprising an upper mounting ring extending from the upper blade section thereof and a lower mounting ring extending from the lower blade section thereof, the upper mounting ring of the upper arcuate blade being secured to the upper support ring and the lower mounting ring of the upper arcuate blade being secured between the hub and the lower support ring, the upper mounting ring of the lower arcuate blade being secured between the hub and the upper support ring and the lower mounting ring of the lower arcuate blade being secured to the lower support ring. ### Claim 7 (depends on 6) The cutting implement set forth in claim 6 wherein the blade assembly is held in assembly for disposition on and removal from the blade axle as a unit. ### Claim 8 (depends on 1) The cutting implement set forth in claim 1 wherein the at least one blade assembly comprises a pair of single-piece arcuate blades in circumferentially spaced relationship with each other about the rotation axis of the blade axle, said blades being circumferentially spaced approximately 180 degrees from each other. ### Claim 9 A cutting implement for a food processor, the cutting implement comprising a blade axle rotatable on a rotation axis thereof in a direction of rotation of the blade axle, and at least one blade assembly mounted on the blade axle, the at least one blade assembly comprising at least one single-piece arcuate blade having an upper blade section coupled to the blade axle, a lower blade section separate from the upper blade section and coupled to the blade axle, and a middle blade section extending arcuately between and interconnecting the upper and lower blade sections, the single-piece arcuate blade having a leading edge in the direction of rotation of the blade axle, said leading edge at least in part being configured to define a cutting edge of the single-piece arcuate blade, said at least one single-piece arcuate blade being configured such that the leading edge of the blade is other than parallel to the rotation axis of the blade axle. ### Claim 10 (depends on 9) The cutting implement set forth in claim 9 wherein the at least one single-piece arcuate blade is configured such that the leading edge of the blade is serpentine. ### Claim 11 (depends on 9) The cutting implement set forth in claim 9 wherein the at least one single-piece arcuate blade transitions from the upper blade section to the middle blade section in one of a reverse direction and a forward direction relative to the direction of rotation of the blade axle. ### Claim 12 (depends on 11) The cutting implement set forth in claim 11 wherein the at least one single-piece arcuate blade transitions from the middle blade section to the lower blade section in a direction opposite the direction of transition of the upper blade section to the middle blade section. ### Claim 13 (depends on 9) The cutting implement set forth in claim 9 wherein the at least one single-piece arcuate blade transitions from the middle blade section to the lower blade section in one of a reverse direction and a forward direction relative to the direction of rotation of the blade axle. ### Claim 14 (depends on 9) The cutting implement set forth in claim 9 wherein the cutting edge extends along at least part of the upper blade section, along the entire middle blade section and along at least part of the lower blade section of the single-piece arcuate blade. ### Claim 15 (depends on 9) The cutting implement set forth in claim 9 wherein the at least one blade assembly further comprises a hub mounted on the blade axle for rotation therewith, an upper support ring disposed on the blade axle above the hub and a lower support ring disposed on the blade axle below the hub, the blade assembly having a pair of single-piece arcuate blades in a stacked arrangement to define an upper arcuate blade and a lower arcuate blade, each arcuate blade further comprising an upper mounting ring extending from the upper blade section thereof and a lower mounting ring extending from the lower blade section thereof, the upper mounting ring of the upper arcuate blade being secured to the upper support ring and the lower mounting ring of the upper arcuate blade being secured between the hub and the lower support ring, the upper mounting ring of the lower arcuate blade being secured between the hub and the upper support ring and the lower mounting ring of the lower arcuate blade being secured to the lower support ring. ### Claim 16 (depends on 15) The cutting implement set forth in claim 15 wherein the blade assembly is held in assembly for disposition on and removal from the blade axle as a unit.